package com.example.demo.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.example.demo.entity.Coach;
import org.springframework.data.repository.query.Param;
import org.springframework.stereotype.Repository;

@Repository
public interface CoachMapper extends BaseMapper<Coach> {
    Coach findById(@Param("coach_id") Long cid);

}
